package com.baozi.order.utlis;

import java.util.Random;

public class KeyUtil {

    /**
     * 生成唯一的主键
     * 格式:时间+随机数
     */

    public static synchronized String genUniqueKey() {
        Random random = new Random();
        Integer number = random.nextInt(900000) + 100000;
        return System.currentTimeMillis() + number.toString();
    }
}
